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mash [69]
4 years ago
7

Complete y^2+15y+56=(y+7)(y+?) ...?

Mathematics
2 answers:
Rufina [12.5K]4 years ago
5 0
The two factors of a quadratic equation can be multiplied to form the original equation. Let the missing term be a:
y² + 15y + 56 = (y + 7)(y + a)
y² + 15y + 56 = y² + (7 + a)y + 7a
We can now compare the coefficient of the like terms, either the one with y or the one without y, and find the value of a.
15 = 7 + a; a = 8
OR
56 = 7a; a = 8

Second factor is (y + 8)
Inessa [10]4 years ago
3 0

y² + 15y + 56 = (y + 7)(y + a)

y² + 15y + 56 = y² + (7 + a)y + 7a

We can now compare the coefficient of the like terms, either the one with y or the one without y, and find the value of a.

15 = 7 + a; a = 8

OR

56 = 7a; a = 8

Second factor is (y + 8)

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2/5 in Fraction form?
hram777 [196]

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Jen Butler has beepricing​ Speed-Pass train fares for a group trip to New York. Three adults and four children must pay $ 108. T
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6 0
3 years ago
Item 15
blsea [12.9K]
The right question is that the lowest altitute is 3^8 feet

You are told that the highest altitude is 3 times the lowest altitude =>

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Now you use the ruel of mutiplication of powers with the same base: copy the base and sum the exponents => 3 * 3^8 = 3 ^(1+8) = 3^9.

Note: remember that 3 = 3^1.

Answer: 3^9 feet
8 0
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Help and i will give you brainiest
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